Formic-aldehyde-containing composition and process of making the same.



POBMIC ALDEHYDE GONTAINI APPLIOATION r H. S. BLAGKMORE.

NG COMPOSITION AND PROCESS-0F MAKING THE SAME. ILBD APR. 1s, 1907. RENEW/BD JAN. 12, 190s.

Patented Apl". 6, 1909.

[NVE/WOR .Mms rum ummm: ummm a c lBLAoKMonn, a citizen'of the United States, residing at Mount Vernon, in the county ot UNITED STATES PATENT onirica- HENRY SPENCER BLAGKMORE, OFMOUNT VERNON, NEW YORK.`

lOmnALDEE'YI-CONTAINING CMPOSETINAND PRGGESS MAKING THE Specification of Letters Patent.

Patented April .6, 1909.

Original application led August 7, 1903, Serial No. l'.A Divided and this application filed April 18, 1907, Serial No. 368,855. Renewed January 12, 190s, Serial No. 471,911.

To allwhom it muyhonoriert;V A

Be it known that l, HENRY SPENCER Vlestchester and Stateof New York, have invented certain. new ,and useful Improvements in Formia-Aldehyde-Containing Compositions and Processes of Makin the Same,

'of which the following is a speci cation, be-

ing a division of application Serial No. 168,673, iiled AugustV 7, 1903.

This invention relates to a new composiion 'of matter for disinfecting, germicide, an-

tiseptic and medicinal purposes and process of making the same, and it consists of a mixture, compound, or solution of formic .aides hyde or its polymerides'in a iixed Water-repellent, such as fixed vegetable oils or fatty vehicles, which compounds, or compositions, may or may not be associated with other medica-ting agents, the object being to produce ai'ixed fatty composition of Water-repellent nature containing forniic aldehyde which micide, antiseptic, and medicinal properties,

may be employed per sc or as a vehicle for other medicating or medicinal agents.

As a speciic illustration of my new composition and the manner in which the same 1s produced, I will take, for example,the production ofja solution of formic aldehyde in maize oil '(corn oil) which oil consists largely of glycerol-oleic ester. The manner in which 1 prefer to produce this iixed Water-repellent or oily formic aldehyde solution or compound, is to place the desired fixed oil, such as maize oil, in a proper container and associate it with forinic aldehyde under increased pressure, at the same time agitating it,'whereby .the formic aldehyde becomes absorbed, occluded, or retained therein. When the fixed oil has become saturated With formic aldehyde it is removed, the formic aldehyde content ascertained by test, and the composition diluted with more oil to obtain the percentage content of formic aldehyde desired. The polymerides of formic aldehyde, such as paraformaldehyde or trioxymethylene may be dissolved in the oil, preferably by the action of heat, producing compounds not departing from the spirit of my invention, as, upon heating in the formation of the composition, formic aldehyde is generated and the composition-is found to have like disinfectant, gerand to all intents andpurposes ma e considered, and is herein included, as an equivalent'composition in accordance with my invention.

The apparatus, in which the solution ot' vformic aldehyde in inert and ixed Water-repellent vehicles in accordance with my process is made, is illustrated in the accompanying drawing, in which,

'Figure l is a longitudinal vertical section;

Fig. 2 is a sectional View of an axial stuffing` box through which passes the inlet and outlety pipes for the purpose of heating the contents of the apparatus by means pf steam; `Fig. 3 is a View of a perforated pipe through Which the formic aldehyde is introduced into the apparatus.

In carrying out my invention for making a solution of lormic aldehyde in maize oil, l.

the valves d in the pipes D and pass therethrough and through'the coil O a current of steam, whereby the maize or corn oil in the drum A. becomes heated. l As soon as the oil has become heated to about l0() degrees C., l introduce into the oLthrough the perforated pipe X foi-mic aldehyde gas, under a pressure of about twenty pounds, by opening` the valve l. This foi-mic aldehyde gas passes' first through the check-valvell Which prcventsthe oil or other substances in the receptacleV A from being forced back in to the formic aldehyde -reservoir or generating apparatus. Connected with pipe F, through W ich the forniic aldehyde gas under -p'res-4 sure passes toV the coil X from which the lorxnic aldehyde gas is discharged through the perfor-ations J1, is a pressure gage GlWhic-h becomes operative on opening the valve g. As soon as the formic` aldehyde begin to passinto the oil in receptacleA through the small perforations 1v, 'the drum A is revolved by means of 'the cog-Wheel M actuated 4bv the movement of the revolving Wheel ln the axial ends of the drum A are the stufling boxes E and P, the steam pipes D .passing through the fixed section e of the stufling-box E, While Athe pipe F through passing flowing the oil against the fixed -coils which the foi-mic aldehyde is introduced into the apparatus passes through the stuflingbox P. As the apparatus revolves, the con tents are simultaneously heated by the steam through the pipesD and the formic aldehyde is introduced throu 7h the pipe F,

-the pressure being maintaine preferably at.

about twenty pounds. After `a sufiicient amount of formic aldehyde has been introduced into the` oil in the apparatus to produce theI desired percentage content, the a aratus is maintained in a rotary condltion for about two hours, whereby the formic aldehyde becomes thoroughly dissolved in or assimilated. with the oil by the agitative action ot' the revolving drum and the fixed steam heating coil o and perforated coil .r through which the formic aidehyde is introduced. The revolution of the apparatus is then stopped and the oil, charged With ormic aldehyde, is Withdrawn through the nine-K by opening the valve lc. The pipe K is provided at its outer end With-a flange .e for the purpose of coupling lup or clamping to conduits leading to a reservoir for the fixed oil charged with forinic aldehyde.

The Whole apparatus is axially supported by the stands L'through which the ends of the hollow trunnions of the receptacle A are supported. l l L lt can be seen that the oil and formic aldehyde are thus thoroughly mixed and assimilated by the action ol" heat and pressure, together` With the agitation caused by..

the revolution of the drum, thus continually and O.

l have found it of advantage to employ this fixed Water-re `)ellent con'iposition containing formic al ehyde or its described equivalent as a vehic e for other medicinal agents, such, for instance, as eucalyptol, in.

Which case it is found to act with satisfaction as an antiseptic and healing` agent for application to suppur'ating surfaces, bringing about the destruction and removal of' the cause of the iniiammatory or suppurating condition and lat the same time apparently acting as a local anesthetic and thereby relieving the pain withwhich such inilammations are usually accompanied. lt is preferable that the formic aldehyde content of the fixed oily vehicle, in cases of this kind, should not exceed one-tenth of one per cent., but it can be varied at theoption of the prescriber to meet the exigencies and idiosyncrasies of the case.

Instead of. eucalyptol I can employ any other ymedicinal agent, as desired, such as menthol, cocaine, morphine, etc., with the fixed oily formic aldehyde vehicle, or l can employ other vegetable fats, oils, or aliliatic esters as the base for the forinic alde iyde vehicle without departing Vfrom the spirit of my invention, and I intend to in c ude the dense vegetable oils or other vegetable aliphatic or similar Oxy-acid esters which, may be of solid, semi-solid, or uid consistencg;d at ordinary atmosphericpressure and temperature, the said fatty Water-repellent formic aldeliyde compositions of which may be employed as a vehicle for other medicating or medicinal agents. v

lt is found that, aside from the advantages derived from the employment of the fixed oily formic aldehyde compositions as a velcle for other medicating or medicinal agents, that, the formc aldehyde 'content prevents the oily base from becoming oxidizedor rancid and the composition is found to be of itself of great advantage as ahemostatic and when applied to cuts or Wounds is ia rapid healing agent by reason of its antiseptic and coagulating action upon the albuminous con- 'tent of the blood or exposed raw surfaces.

it may be noted that dry formic aldehyde,z

which is a gas, unites or combines very readily with the ixed oils or aliphatic esters and becomes more readily assimilated With or retained. or occluded therein in a more permanent manner and to a larger percentage Without danger of polymerization than is the case with aqueous solutions.

'.ihe term 4Hinert employed throughout this speciiication and claims has particular reference to the character ol' the' solvent for the forrnic aldehyde and its character in relation to the fermic aldehyde content; and the. terni "fixed vegetable oil to the crude vor conuuercial inert, fixed, water-repellent,

vegetable fat or oil, as Well as purified productsor esters and is intended to include in-V ert, fixed, Water-repellent compositions of fixed oily nature which are derived from vegetable substances or artificially or synthetically prepared, it being understood that the term iixer implies that the substance is of non-volatile and permanent character under ordinary atmospheric pressure and temperature and the term water-repellent designates a composition ordinarily insoluble or incompatible with, water.

l"lhe fixed vegetable oils cr tats are .more stable than animal cils or fats, such as lard,

and are not so prone to be dec-rmip'osed by hydrolysis into fatty acids and glycerin, because they are associated in nature largely with Water-repellent vegetable substances which protect the. esters present, and, furthermore, they are f'ree from such decomposition products as acrolein and other. disintegrating aldehydes .which are present in ani- Y mal fats, by reason of' the method by which they are obtained such as heat; v'while-vegetable oils are largely obtained by cold compression or through the medium or solventaction of some volatile vehicle or nienstruum.

The decomposition products, or products of destructive distillation, present in animal oils or fats, act to enhance the decomposition or hydrolytic disruption of the fixed esters into fatty acids and glycerin. Maize oil rel sents an admirable vehicle for formic a dehyde, in that it is practically a waste prod-v uct, being a vby-pfroduct in the manufacture of corn products. is hardly saponiiiable 4 'fenoughjtobe em loyed for making soap, and does not possess ryingqualities enough to be used as ayehicle for paints, but contains more or less. vegetable -albuminoids which 1p ge'vent -or retard hydrolyti'c action onA theA 4 ed .fester contents, and will absorb, 'occlude,v or retain, Alarge quantities of. formic aldehyde gas and allow it to gradually be discharged in thepresence of the atmosphere and moisture,` while its non-drying and unsaponifiable' properties tend to prevent decomposi- 20.' tion and the drying of the oil."

. One ofv the particularapplications of themaize `oil formic aldehydecomposition, for .'h gienic pu oses, vis to. apply it to, or em p oy it in, te ephone transmitters', where, by 2.5 the action v-of` the moisture of the breath,

formic 'aldehyde is discharged gradually, thus rendering the device perfectly antiseptic in an automatic manner.

i Another valuable a plication ofthe comvopositionis foroilingl oors oi' schools, halls,

public buildings, etc. for the purpose of re taining dust, thereby 'preventing its circulation in the air and thus producing a sanitary and germicidal condition, and also inv conjunctionwith absorbent substances,` such as saw-dust, etcg'for collecting dust during the process of sweeping.

Having'now described my invention,.what

Iclaim as new and desire to secure by Let- 1. A new comosition of matter comprising a fixed vegeta le oil andformic aldehyde.

.1 2. new composition of matter compris-- ing a'xed vegetable oil, formic aldehyde,

comprisl tol. A new composltlon of. matter comprisoccluded therein.

in presence oftwo witnesses.

ing a fixed vegetable ester and formi@l aldehyde.

8'.' A new composition of matter compris-` mg a iix'ed vegetable ester, formlc aldehyde, v

and a medicating agent. v

9. A new composition of matter comprisinga AIixed vegetable ester, formic aldehyde and' encalyptol. y 10. AThe process of making the new composition o matter herein set forth, which consists in mixing la fixed vegetable oil with formic aide-hyde and exposing the sameito intimate associationuntil theV formic aldehyde had become associated therewith or occluded therein,

V11'. The process of making the new compositionlof matter herein set forth, which consists in mixinfl a'fixed .vegetable oil with gaseous formic a dehyde and exposing the same to intimate yassociation until the formic aldehyde has becomeas'sociated therewith or occluded therein. j

' 12. The process of making the new composition of matter herein set forth, which conslsts ofl mixing a iixed vegetable oil vwith formic aldehyde under super-atmospheric pressure and ex osing the-same to intimate association unti the formic aldehyde `has become associatedv therewith or occluded therein.

13. The process :of making the new comi position of matter herein set forth, which consists of mixing vmaize oil with formic aldehyde and'exposing the 'same to intimate association, until the forlnic aldehyde has become associated therewith or 4occluded therein. 14. The process of making'the new composition of Vmatter herein set fortlnwhic'h .consists ofmixing maize oil with vgaseous .formic -aldehyde and exposing the same to intimate association until the formic aidehyde has become associated therewith or.

15. The process of making consists in mixing maize oil with formic alldehyde under super-atmospheric pressure and exposing the same to Intimate association until theformic aldehyde -has become.

associated therewith or occludedthereln.

In testimony whereof l aflix my signature HENRY SPENCER'BLACKMORE. Witnesses:

E. M. HOLMES, J. R. NOTTINGHAM.

the new .com-vv yposition of matter hereln setforth,"w hich Y 

